Fatigue symptoms in relation to neuroticism, anxiety-depression, and musculoskeletal pain. A longitudinal twin study. by Olav Vassend, Espen Røysamb, Christopher Sivert Nielsen, Nikolai Olavi Czajkowski

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Pain Tolerance in Persons With Recognized and Unrecognized Myocardial Infarction: A Population‐Based, Cross‐Sectional Study by Andrea Milde Øhrn, Christopher Sivert Nielsen, Henrik Schirmer, Audun Stubhaug, Tom Wilsgaard, Haakon Lindekleiv

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Pain sensitivity and analgesic use among 10,486 adults: the Tromsø study by Per-Jostein Samuelsen, Christopher Sivert Nielsen, Tom Wilsgaard, Audun Stubhaug, Kristian Svendsen, Anne Elise Eggen

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Reduced heart rate variability is related to the number of metabolic syndrome components and manifest diabetes in the sixth Tromsø study 2007–2008 by Naomi Azulay, Roy Bjørkholt Olsen, Christopher Sivert Nielsen, Audun Stubhaug, Trond Geir Jenssen, Henrik Schirmer, Arnoldo Frigessi, Leiv Arne Rosseland, Christian Tronstad

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Accumulation of health complaints is associated with persistent musculoskeletal pain two years later in adolescents: The Fit Futures study by Kaja Smedbråten, Margreth Grotle, Henriette Jahre, Kåre Rønn Richardsen, Pierre Côté, Ólöf Anna Steingrímsdóttir, Kjersti Storheim, Christopher Sivert Nielsen, Britt Elin Øiestad

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Accumulation of health complaints is associated with persistent musculoskeletal pain two years later in adolescents: The Fit Futures study. by Kaja Smedbråten, Margreth Grotle, Henriette Jahre, Kåre Rønn Richardsen, Pierre Côté, Ólöf Anna Steingrímsdóttir, Kjersti Storheim, Christopher Sivert Nielsen, Britt Elin Øiestad

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Hormonal contraceptive use and Staphylococcus aureus nasal and throat carriage in a Norwegian youth population. by Dina B Stensen, Lars Småbrekke, Karina Olsen, Guri Grimnes, Christopher Sivert Nielsen, Gunnar Skov Simonsen, Johanna U E Sollid, Anne-Sofie Furberg

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The medication-based Rx-Risk Comorbidity Index and risk of hip fracture - a nationwide NOREPOS cohort study by Siri Marie Solbakken, Haakon Eduard Meyer, Cecilie Dahl, Trine Elisabeth Finnes, Vidar Hjellvik, Christopher Sivert Nielsen, Tone Kristin Omsland, Hein Stigum, Kristin Holvik

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Change in physical activity is not associated with change in mental distress among adolescents: the Tromsø study: Fit Futures by Ida Marie Opdal, Bente Morseth, Bjørn Helge Handegård, Kjersti Lillevoll, Helga Ask, Christopher Sivert Nielsen, Alexander Horsch, Anne-Sofie Furberg, Simon Rosenbaum, Kamilla Rognmo

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Social network analysis of Staphylococcus aureus carriage in a general youth population by Dina B. Stensen, Rafael A. Nozal Cañadas, Lars Småbrekke, Karina Olsen, Christopher Sivert Nielsen, Kristian Svendsen, Anne Merethe Hanssen, Johanna U. Ericson, Gunnar Skov Simonsen, Lars Ailo Bongo, Anne-Sofie Furberg

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